package com.tanhua.server.service;

import com.alibaba.fastjson.JSON;
import com.tanhua.commons.utils.Constants;
import com.tanhua.model.vo.ErrorResult;
import com.tanhua.server.exception.BusinessException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;
import org.springframework.util.StringUtils;

import java.util.Map;

/**
 * @author ck
 * @date 2021/11/21 15:27
 */

@Service
public class UserFreezeService {

    @Autowired
    private RedisTemplate<String,String> redisTemplate;

    /**
     * 判断用户是否被冻结，如果用户已经被冻结直接抛出异常
     *  参数： 冻结范围
     *  参数：用户id
     */
    public void checkUserStatus(String state,Long userId){
        //1、拼接key
        String key  = Constants.USER_FREEZE + userId;
        String value = redisTemplate.opsForValue().get(key);
        //2、如果数据存在，且冻结范围一致，抛出异常
        if (!StringUtils.isEmpty(value)){
            Map map = JSON.parseObject(value, Map.class);
            String freezingRange = (String) map.get("freezingRange");
            if (state.equals(freezingRange)){
                throw new BusinessException(ErrorResult.builder().errMessage("用户被冻结").build());
            }
        }
    }
}
